5/10/2023 10:15:00 AM until 5/11/2023 12:45:00 PM

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

A strong storm system will bring heavy rainfall to the area, starting this evening and continuing through Friday night. Rainfall totals in excess of 2 inches are likely through the event, with some locations approaching 3 inches. Heavy rain will cause rivers and streams to rise aggressively, with flooding possible. ...FLOOD WATCH REMAINS IN EFFECT FROM 6 PM MDT THIS EVENING THROUGH LATE FRIDAY NIGHT... * WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of Montana, including the following counties, Big Horn, Carter, Custer, Fallon, Powder River, Rosebud and Treasure. Portions of north central Wyoming, including the following county, Sheridan. * WHEN...From 6 PM MDT this evening through late Friday night. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. * ADDITIONAL DETAILS... - Over 2 inches of rainfall is possible from tonight through Friday night. This heavy rainfall could cause rivers and streams in the area to rise aggressively and possibly flood. - http://www.weather.gov/safety/flood